递等式计算下面各题.72-44+85 234-135÷9 144+(57-12)×2 95-15×6+41 (15+20)×3 (75+30)
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解决时间 2021-02-10 03:16
- 提问者网友:眉目添风霜
- 2021-02-09 05:49
递等式计算下面各题.72-44+85 234-135÷9 144+(57-12)×2 95-15×6+41 (15+20)×3 (75+30)
最佳答案
- 五星知识达人网友:逃夭
- 2021-02-09 05:57
(1)72-44+85,
=28+85,
=113;
(2)234-135÷9,
=234-15,
=219;
(3)144+(57-12)×2,
=144+45×2,
=144+90,
=234;
(4)95-15×6+41,
=95-90+41,
=5+41,
=46;
(5)(15+20)×3,
=35×3,
=105;
(6)(75+30)÷(20-5),
=105÷15,
=7.
=28+85,
=113;
(2)234-135÷9,
=234-15,
=219;
(3)144+(57-12)×2,
=144+45×2,
=144+90,
=234;
(4)95-15×6+41,
=95-90+41,
=5+41,
=46;
(5)(15+20)×3,
=35×3,
=105;
(6)(75+30)÷(20-5),
=105÷15,
=7.
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